| 摘要 |
PURPOSE:To manufacture a foam molded body covered by air-permeable skin material by a method wherein the unexpanded stock solution of synthetic foaming resin is poured in the interior of a formed sheet and expanded, therein in order to make a skin material, a calico cloth, a synthetic resin film and the synthetic foaming resin into an integral body. CONSTITUTION:First, a sheet 7 is formed under the state being brought into close contact with the inner surface of the cavity 1a of a vacuum mold 1 by evacuating air through vent holes 2. Secondly, after a hold-down frame 3 is removed, a predetermined amount of unexpanded stock solution 8 of foaming polyurethane or the like is poured in the interior of the formed sheet 7 in the vacuum mold 1 so as to expand the solution under the state that the opening face is blocked by a top cover 9. After that, by removing from the mold, a foam molded body 10 covered by the sheet 7 which is under tension is obtained. During the above-mentioned process, at the stage, in which the unexpanded stock solution 8 expands, the synthetic foaming resin oozes out of fine pores provided on a film 6. The oozed-out synthetic foaming resin permeates a calico cloth 5 and then properly oozes out of the calico cloth 5 so as to join with a skin material 4. |
